Jira issue originally created by user @beberlei:
This issue is created automatically through a Github pull request on behalf of broncha:
The function getConcatExpression accepts strings, but as there can be any number of parameters passed to this and while calling from ConcatFunction sqlwalker has to walk all the parameters. So it would be better if getConcatExpression accepts array. Infact even better if it only accepts array. It would be much cleaner. Also I am opening a pull request in ORM for ConcatFunction as it only validates 2 primaryStrings. It should support more than two. SO for that to happen, getConcatExpression should accept array as parameter.
Issue was closed with resolution "Invalid"